How to select Hierarchy from 3d view
Adding &quot;Select Hierarchy&quot; from the outliner to the Quick menu will add it to the Quick Menu of the outliner.
Instead you may use the following solution:
Press F3 in the 3d window to search for a function and type &quot;Select Hierarchy&quot; (without quotation marks). It will even show up, if you type &quot;hie&quot; instead. Then press Return.